Photographic-printing apparatus.



T. ZABROOKI. PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION rum: JULY 11, 1913.

Patented Nov. 3, 1914.

4 SHEETSSHEET 1.

bwummo mm m T. ZABROGKI.

I PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION FILED JULY 11, 1913. 1,1 16, 195, Patented Now-3, 1914.

4 SHEETS-SHEET 3.

T. ZABROOKI. PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION FILED JULY 11, 1913.

Patented Nov. 3, 1914.

4 SHEETSSHEET 4.

UNITED STATES PAT NT OFFICE.

TONY ZABBOCKI, OI WINONA, MINNESOTA.

PHOTOGBAPHIC-IRINTIN G APPARATUS.

To all whom it may concern:

Be it known that I, TONY ZABROCKI, a citizen of the United States, residing at Winona, in the county of Winona and State of Minnesota, have invented certain new and useful Improvements in Photographic- Printing Apparatus, of which the following is a specification.

This invention relates to photographic printing apparatus, and more particularl to that class of photographic printers adap ed to operate automatically.

. The primary object of this invention is to provide an automatic photographic printing apparatus adapted to use sunlight or an artificial light without a great change in the apparatus.

A further object of this invention is to provide an automatic photographic printing apparatus ada ted to be regulated. with regard to the lengt of the exposure.

A still further object is to provide a printing apparatus adaptedto register the number of prints made thereby and to warn the operator when the desired number of prints is completed.

With these and other'objects in view this invention consists in the peculiar combination and arrangement of the mechanism and parts of an. automatic photographicprinting apparatus as hereinafter described and more particularly pointed out in the appended claims.

Referring to the drawings forming a part of this specification wherein similar reference characters indicate similar parts wherever used, Figure 1 is a perspective view of the apparatus in a position to receive the necessary materials; Fig. 2 is a side elevation of the device in a printing position;

Fig. 3 is a top plan view; Fig. 4 is asection through. the device when printing by sunlight; Fig. 5 is a section through the device when printing by electricity. Fig. 6 is a detail of the registry and alarm mechanism; Fig. 7 is'a detail of the shifting ratchet'of the registry mechanism; Fig. 8 is a detail of the alarm mechanism; Fig. 9 is a detail of the operating mechanism; Fig. 10 is a detail of the operating mechanism; Fig. 11 is a. detail of the operating mechanism and Fig. 12 is a detail of the operating mechanism, showing the valve controlling the piston rod.

14 designates a casing or box provided with a plurality of openings and provided Specification of Letters Patent. Application filed July 11, 1913. Serial No. 778,486.

at one end with a vertical partition 15 formlng a chamber 16 provided with a door 17. Upon the inner face of the door 17 are a plurality of clips18 adapted to .hold photographic plates or the like. An aperture 19 is formed in the rear of the casing 14, and

is closed by a door 20. This aperture is for.

the purpose of permitting access to the iriterior of the device. Formedin the top of the casing is an aperture 21 which is closed by a glass plate 22, Hingedly connected to the top of the casing and adapted to cover- F I the glass plate 22 is a door 23-comp0sed of two sections 24, 25, hingedly connected at 2626.by means'of spring hinges which tend to force the forward section 24 upwardly, as shown in Fig. l and in dotted lines in Fig. 4. A stop 27 controls the up- Ward'movement of the section 25. The inner face of each of the sections 24-25 is covered by a thick felt pad 28. The door 23 is fastened to the casing 14, by means of a metal rod 30, passing through eyelets 31 'upon the section 25, and thence through lugs 32 upon the casing when the end of the rod at 32 is bent downwardly throughan aperture 33 into the chamber 16 when the rod 30 is provided with a hook 34.

Pivotally connected to the section 24 is a latch member 35 guided by a keeper 36 and normally held in elevation b The latch member is provide with a'bifurcated end 38 carrying a pin 39 adapted to engage a hooked member 40 located on the interior wall of the casing. The member 40 40, which will release the pin 39, releasing.

the latch, which in turn releases the door 23, allowing the sections 24 and 25 to fly upwardly by the action of the spring 26.

Thewall of the casing opposite the partition 15 is provided with an aperture which is normally closed by means of a plurality of overlapping shutters-45, pivotally sup- PatentedNov. 3, 1914.

a spring 37.

ported upon the side walls of the aperture. The movement of these shutters is controlled by means of a plate 46, which is connected thereto by means of crank levers 47, attached to the pivots 45", and .slots 48 controlling the crank levers which work therein. The sliding plate 46 is controlled by means of "a pivoted lever 49, secured at 50 to the lower end thereof and pivoted at 51 to the interior of the casing. The lever 49 is provided at its inner end with a notch 52, the purpose of which will be hereinafter explained. The return of the said lever 49 to normal is made certain by means of a leaf spring 52' operating thereon.

' In the bottom of the box, or in the side of the casing opposite the aperture 21, is laced an electric lamp socket 53 of the or inary type and adapted to receive a lamp bulb 54. Connected in a circuit with this socket is a knife-switch 55, which is normally held out of contact by means of a leaf spring 56 which forces the bladeupwardly out of contact with the socket. The source of electricity may be any suitable means connected to a wire 57. Attached to the blade of the knife switch 55 is a member 58- composed of fiber, or any other suitable insulating material, and provided in its lower portion with a slot 59, the purpose of which will be hereinafter ex lamed. The upward movement of the knifeswitch 55 is suitablynlimited by means of a stop 60.

Sliclably mounted in bearings 61upon the interior wall of thebox is a vertical rod 62,

" provided with an inwardly projecting cam either t ture in the wall of the box, thus enabling the member 62 tobe shifted when the box is surface '63 and an upper bifurcated end 64 and uponits lower end with an outwardly extending pin 65. The bifurcated end 64 is adapted to be engaged by the bifurcated end 38 of the latch-member 35, and to be pressed downward thereby when said latch-member is in locked position, as shown in Fig. 5.

By means of a member 66 provided with lugs 67 engaging'the member 63, the said absolutely closed.

Acting upon the cam' face 63 isa rod .69, extendingthrough the door of the boxand terminating in a handle 70, by means of which the member 62 may be raised andlowered independently of the latch mechanism.

lVhen it is desired to print by means of natural light, the member 62is shifted until the pin 65 engages the notch 52, when any downward movement of the member 62 will cause the lever 49 to tilt, which in turn opit'isdesir'ed to print by means oferates the member 46 and opens the-shutter 45.- Should it be desired to print by means of electric light the member 62 is shifted until the pin 65 engages the notch 59 of the member 58, whereu on any downward movement of the mem er 62 will actuate the knife-switch,-to close the circuit and light the bulb 54. Arranged about the bulb 54 is an inverted pyramidal-shaped reflector 71, adapted to throw the light rays upward against the glass plate, 22.

All 'the light controlling mechanism is covered by any suitable covering and an asbestos cover placed over the switch 55. The interior of the box is coated with any suitable light reflecting medium and is made absolutely light-excluding with the exception of the glass plate 22 in the'top thereof.

Secured to the wall of the partition 15 and lying within the chamber 16 is a vertical guide way 7 2,provided at its upper end with a stop 73, carrying a pulley wheel 74. .Slidably mounted in said guide wayis a traveling plate provided with anti-friction rollers 76 adapted to engage the guide way 72. Pivotally supported upon the member 75 is a dog 77,. rovided at its lower extremity with a 00k portion 78 carrying antl-friction rollers 79. A-.chain 80 is se cured to the top of the slide'75 and passes over the pulley 74 and is. secured to the hook 34 ofthe rod 30 in such a manner that when slide to the top of the guide way.

Directly above the guide 'way 72 and sethe door 23 is closed the chain will draw the cured to the top of the box is a plunger 81 ,which supports a cylinder 82 formed at its lower end with a heavy weight 83, or spring (not shown) so constructed as to draw the cylinder downward or against the pressure of the air therein and the, action of the lunger, said air pressure being controlled y means of a valve 84 located in an aperture in the top of the box, as shown in Fig. 12. Secured to the weight 83is a chain 85, assmg over pulley wheel/86, and connectmg with the hook portion 43 of the rod 41' in such a manner that the downward motion of the weight will cause the chain 85 to pull the-hook member 43 forward to trip the latch member. 35,.which releases the door 23 and by spring door 23 Wide open. a

The operation of-the device is as follows:

' The film or plate and the sensitive paper are placed in their proper relation upon the glass plate22, the door 23 being open and.

thrownback to its open position as shown in Fig. 1. This opening of the door 23 has caused that portion of the. rod 30 within the chamber 16 to move forward, thus loosening the chain 80 and "allowing the slide 75 to move by its own weight to the bottom of the track 72 where the pivoted member 77 moves outwardly upon the weight and al- 27, automatically thr lows the hook member 78 to engage the under edge of the weight 83. The door 23 is now closed and latched, which causes the member 62 to be depressed to open the shutters or close the knife switch and the rod 30 .to vrecede, raising the slide and the weighted cylinder upwardly on the track 72, to a point 0 posite the hook member 43, which strikes t e upper end of the pivoted member 77 and kicks the same out from under the weight 83, as shown in dotted lines in Fig 2. The weight because of gravity or spring (not shown) will travel downward upon the guide way 72 and the rod 81 until the chain '85 becomes taut, when. a further downward pressure of the weight will cause the chain 85 to pull the hook member 43 of the rod 41 forward, which in turn moves the catch member 40 rearwardly, and releases the latch 35, whereupon the door 23 flies backward and the member 62 moves upwardly, allowing the shutters to close, or-

the knife-switch to resume its normal out of circuit position.

The pulley 86 is carried by a bifurcated arm 87, carried by a member 88, pivotally mounted at 89 on the partition 15,'and carrying a telescoping member 90, extending upwardly through an aperture 91 in the top 0 the box, where it is provided with a pawl 92, adapted to engage a rack 93, havin a gage 94, divided to indicate'an "suita le periods of time. When the paw 92 is setat a rack tooth opposite the gage mark of a certain period of time the member 88 will be correspondingly moved about its pivot 89, thus moving the member 87, carrying the pulley 86 in such a manner as to regulate the slack of the chain 85 with regard to the downward stroke of the weight 83, thus regulating the length of time that the device is in operative. position.

Secured within the aperture 91 is a stationary rack 95 and a slidable rack 96. Movably-mountedbetween the racks 95,- 96 is an indicator 97 formed with a pointer 98,

. adapted to travel along a scale. 99, graduated to represent any suitable series of numbers as 0 to-50, etc. The member 97 is formed of a stationary piece 99 provided with a groove 100, and a, member 101 prov'idedwith a V-shaped jaw 102 at its outer end thereof, said member sliding in the groove 100. Secured to the under side of the member 99 are spring rods 103 normally adapted to flare outwardly and engage the teeth of the rack bars 95, 96, but adapted upon a forward movement of the member, sliding in the groove 100, to be engaged by the jaw 102 and forced inwardly and away from the rack teeth, thus permitting the member 97.to slide irrespective of the racks. The pointer 98. is set at any desired number along the scale to indicate the number of prints required, and is then operated in the following manner: The sliding rack 96 has formed upon it a lug 104, and is adapted to be normally pressed away from the wall of the box toward the valve 84, by means of a spring 105. The portion of the rod 30 extending downwardly into the clutch 16 en- .7

will slide forward f" under the action of the spring 105, andenf 1 gage one of the pins 103. I of the door the rod 30 strikes the lug 1 pulling the slide 96 backward, which causes, the rack to pull the member 97 with it a distance equal to one of thegraduations upon the scale. This operation is continued until the member 97 is at a point opposite the zero mark upon the scale, when a lug 106 carried by the member 97 tri s a hammer 107, which in turn strikes a belFlOS thus warning the operator that the required number of prints has been completed.

A spring held clamp 110 is provided for holding the paper and the'film or plate to be rinted tightly against the glass 22.

l ithin the chamber 16 is provided a cleat 111, adapted to receive the coil of an electric wire when the same is not in use.

A hinged cover 112 is provided to cover the aperture 91 and the valve 84.

Below the opening 22 of the casing 14 is placed a suitable vignettin mechanism preferably constructed in the ollowing manner: Mounted upon depending partitions upon both sides of the opening 22 are plates 109-..-.-. 109 adapted to slide toward and away from the opening 22 by means of step by ste slots 1 formed in the plates 109 and at'laptla' Upon the closizf to be engaged by pins e 6 carried by the partitions. Formed in the upper portion of the sliding plates 109 109 are lugs 12 and'b adapted to receive a ground glass plate A. Upon this plate A is supported a paper mask 0 provided with an aperture d, thus allowing of the exposure of only that part of the film or negative desired to be printed, By this construction it will be seen that the plates 109-1 09 may be easily moved toward or away from the negative or film in order to get the correct amount of exposed surface,

etc. Conveniently placed about the vignetting mechanism are a plurality of supplemental refiectors 9, so placed as to direct the light upwardly and to concentrate the light upon the ground glass plate A. 7 I

-I am aware that considerable variation is possible in the details of construction herein shown and described, without departing from the spirit of my invention, and I do not intend to limit myself thereto, exce t as pointed out'in the following'claims, in which it is my intention to claim all the novelty inherent .in the structure shown and described as broadly asthe state. of the art will permit.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is: v

1. In an automaticprinting device, the

, combination with a box; of means for contive shifting of the vertical lever.

2. In a printing device, a box provided with openings, a closure for one of said openings, a closure for another-of the openings, mechanism for operating said last named closure, means carried by the first named closure adapted to operate the mechanism to operate the second mentioned clo-' sure, and means adapted to operate the second closure independently of the first'mentioned closure.

'3. Ina printing device, a boxprovided with an opening, a closure for said opening, said closure comprising a plurality of pivoted plates, means for operatively connectingsaid ivoted plates, said means comprising a sli ing member provided with a plurality of slots, crank 'arms upon the pivots of said plates, adapted to work in said slots, and means for operating said member to operate said plate.

'4. In a printing device, a box provided with anopening, a closure for said opening, said closure comprising a plurality of pivoted plates, means for operatively connecting said pivoted plates, said means comprising a sliding member provide with a plurality of slots, crank arms upon the pivots of said plates,adapted to work in .said slots, means for operating said member to operate said plates, said means comprising a pivoted lever mounted on said slidable member, said,

lever having a slot, and means adapted to engage such slot to operate thelever.

5. In a printing apparatus, abox formed with two apertures, means adapted'to open and close one of said vapertures, a closure for the other aperture, means withinsaid box adapted to make and break an electric circuit, means operatively carried by said last mentioned closure adapted to operate the shutter or the circuit, and meansfor disclosing said first mentioned aperture and connecting the mechanismclosmg the circonnecting the mechanism for'ope'ning and device, the combination snares tension, a member extending from said detent, a second extension carried by said detent, and a hook member carried by said second extension, and means for operating said detent to release the latch.

7. In a printing device, a box formed with an aperture, a closure'for said aperture, a latchcarried by said closure, a de tent adapted to engage said latch, and means for operating the detent to release the latch, said means comprising a piston, a cylinder working over said piston" and partially restrained thereby, and means between said cylinder and said detent whereby extreme downward movement of the cylinder will operate the detent to release the latch.

8. In a printing device, a box formed with an aperture, a closure for said aperture, a latch carried by said closure, a detent adapted to engage said latch, and means for operating the detentto release the latch, said' means comprising a piston, a cylinder working over said piston and partially restrained thereby, means between said cylinder and said detent whereby extreme downward movement of the cylinder will operate the detent to release the latch, said means comprising flexible connections operatively connected thereto, and means for controlling the relative slack of said flexible connection to regulate the length of stroke of the cylinder.

9. In a printing device, a box formed with an aperture, a closure for said aperture, a latch carried by said closure, adete'nt adapted to engage said latch, and means for operating the detent to release the latch, said means comprising a piston, a cylinder working over said piston and partially restrained thereby, means between said cylinder and said detent whereby extreme downward movement of the cylinder will operate the detent to release the latch, said means comprising flexible connections ope erativelyconnected thereto, means .for controlling the relative slack of said flexible connection toregulate the length of stroke of the cylinder, said means comprising a pivoted lever having a pulley engaging said connections, means for operating said pivoted lever, and means, for determining the amount of movement necessary for said pivoted lever.

10. In a printing device, a box provided with an aperture, a closure for said aperture, a latch carried by said'closure, a detent adapted to engage said latch, a cylinder, a piston for saidc linder, one of said mem+ bers being attache to the box and the other whereby the detent will release the latch when themovable member has moved a PIG-.1 determined distance;

11. In a printing device, a box provided iso with an aperture, a closure for said aperture, a latch carried by. said closure, a detent adapted to engage said latch a cylinder, a piston for said cylmder, one oi said membersbeing attached to the box and the other movable in relation thereto, means connecting the movable member to the detent, whereby the detent will release the latch when the movable member has moved a predetermined distance, and means to vary the ldistance to be traveled by the movable mem- 12. In a printing device, a box provided with an aperture, a closure for said aperture, a latch carried by said closure, a detent adapted to engage said latch, a cylinder,

a piston for said cylinder, one of said members being attached to the box and the other movable in relation thereto, means connecting the movable member to the detent, whereby the detent will release the latch when the movable member has moved a. predetermined distance, and means operated by the closure to engage the movable member to return it to its starting position.

In testimony whereof I afiix my signature in presence of two witnesses.

TONY ZABROCKI.

Witnesses D. E. VANCE, 

